/*
 * Copyright 1999-2018 Alibaba Group Holding Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.alibaba.druid.bvt.sql.oracle.pl;

import com.alibaba.druid.sql.OracleTest;
import com.alibaba.druid.sql.SQLUtils;
import com.alibaba.druid.sql.ast.SQLStatement;
import com.alibaba.druid.sql.visitor.SchemaStatVisitor;
import com.alibaba.druid.util.JdbcConstants;

import java.util.List;

public class Oracle_pl_if_3 extends OracleTest {

    public void test_0() throws Exception {
        String sql = "IF l_salary BETWEEN 10000 AND 20000\n" +
				"THEN\n" +
				"   give_bonus(l_employee_id, 1000);\n" +
				"ELSIF l_salary > 20000\n" +
				"THEN\n" +
				"   give_bonus(l_employee_id, 500);\n" +
				"ELSE\n" +
				"   give_bonus(l_employee_id, 0);\n" +
				"END IF;"; //

        List<SQLStatement> statementList = SQLUtils.parseStatements(sql, JdbcConstants.ORACLE);
		SQLStatement stmt = statementList.get(0);

        assertEquals(1, statementList.size());

        SchemaStatVisitor visitor = SQLUtils.createSchemaStatVisitor(JdbcConstants.ORACLE);
        for (SQLStatement statement : statementList) {
            statement.accept(visitor);
        }

//        System.out.println("Tables : " + visitor.getTables());
//        System.out.println("fields : " + visitor.getColumns());
//        System.out.println("coditions : " + visitor.getConditions());
//        System.out.println("relationships : " + visitor.getRelationships());
//        System.out.println("orderBy : " + visitor.getOrderByColumns());

        assertEquals(0, visitor.getTables().size());

//        Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("employees")));
//        Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("emp_name")));

//        Assert.assertEquals(7, visitor.getColumns().size());
//        Assert.assertEquals(3, visitor.getConditions().size());
//        Assert.assertEquals(1, visitor.getRelationships().size());

        // Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("employees", "salary")));

		{
			String output = SQLUtils.toOracleString(stmt);
			assertEquals("IF l_salary BETWEEN 10000 AND 20000 THEN\n" +
							"\tgive_bonus(l_employee_id, 1000);\n" +
							"ELSE IF l_salary > 20000 THEN\n" +
							"\tgive_bonus(l_employee_id, 500);\n" +
							"ELSE\n" +
							"\tgive_bonus(l_employee_id, 0);\n" +
							"END IF;", //
					output);
		}
		{
			String output = SQLUtils.toOracleString(stmt, SQLUtils.DEFAULT_LCASE_FORMAT_OPTION);
			assertEquals("if l_salary between 10000 and 20000 then\n" +
							"\tgive_bonus(l_employee_id, 1000);\n" +
							"else if l_salary > 20000 then\n" +
							"\tgive_bonus(l_employee_id, 500);\n" +
							"else\n" +
							"\tgive_bonus(l_employee_id, 0);\n" +
							"end if;", //
					output);
		}
	}
}
